<template>
  <div class="login-container">
    <div class="login-form">
      <div class="login-header">
        <h2>网络信号优化系统</h2>
        <p>欢迎登录</p>
      </div>
      
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginRules"
        label-width="80px"
        class="form-content"
      >
        <el-form-item label="用户名" prop="username">
          <el-input
            v-model="loginForm.username"
            placeholder="请输入用户名"
            :prefix-icon="User"
            size="large"
          />
        </el-form-item>
        
        <el-form-item label="密码" prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            placeholder="请输入密码"
            :prefix-icon="Lock"
            size="large"
            show-password
            @keyup.enter="handleSubmit"
          />
        </el-form-item>
        
        <el-form-item>
          <el-button
            type="primary"
            size="large"
            :loading="loading"
            @click="handleSubmit"
            class="login-button"
          >
            登录
          </el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script setup>
import { ref, reactive } from 'vue'
import { useRouter } from 'vue-router'
import { User, Lock } from '@element-plus/icons-vue'
import { ElMessage } from 'element-plus'
import { useLogin } from '../hooks/useLogin'

const loginFormRef = ref()

const loginForm = reactive({
  username: 'admin',
  password: '123456'
})

const loginRules = reactive({
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 3, max: 20, message: '用户名长度在 3 到 20 个字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, max: 20, message: '密码长度在 6 到 20 个字符', trigger: 'blur' }
  ]
})

const { loading, handleLogin } = useLogin()

const handleSubmit = async () => {
  if (!loginFormRef.value) return
  
  try {
    const valid = await loginFormRef.value.validate()
    if (valid) await handleLogin(loginForm)
  } catch (error) {
    // 表单验证失败
    ElMessage.warning('请正确填写表单信息')
  }
}
</script>

<style scoped>
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-form {
  width: 400px;
  padding: 40px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-header h2 {
  color: #333;
  margin-bottom: 10px;
  font-size: 24px;
}

.login-header p {
  color: #666;
  font-size: 14px;
}

.form-content {
  margin-top: 20px;
}

.login-button {
  width: 100%;
  margin-top: 10px;
}

:deep(.el-form-item__label) {
  font-weight: 500;
}
</style>